1068897636 has 27 divisors (see below), whose sum is σ = 2702431641. Its totient is φ = 356233824.

The previous prime is 1068897619. The next prime is 1068897647. The reversal of 1068897636 is 6367988601.

It is a happy number.

The square root of 1068897636 is 32694.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 110376036 + 958521600 = 10506^2 + 30960^2 .

It is a super-2 number, since 2×1068897636² = 2285084312492776992, which contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 193440 + ... + 198888.

Almost surely, 2^1068897636 is an apocalyptic number.

1068897636 is the 32694-th square number.

It is an amenable number.

1068897636 is an abundant number, since it is smaller than the sum of its proper divisors (1633534005).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1068897636 is an frugal number, since it uses more digits than its factorization.

1068897636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10908 (or 5454 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The cubic root of 1068897636 is about 1022.4577524923.

It can be divided in two parts, 1068 and 897636, that added together give a square (898704 = 948²).

The spelling of 1068897636 in words is "one billion, sixty-eight million, eight hundred ninety-seven thousand, six hundred thirty-six".